Wittenberg University in Springfield, Ohio
http://www.wittenberg.edu
1. Did your school(s) have single sex dorms? co-ed? combo?
We had one single sex dorm called Hanley, but it was connected to 2 co-ed dorms. 
The rest of the dorms were all co-ed. Ferncliff was co-ed by floor. The 3rd floor was 1/2 male and 1/2 female. 
2. Did you all have a visitation policy? What was it?
Yes. Visitation of opposite sex in your rooms was over at midnight on Mondays - Thursdays or maybe Sundays - Thursdays. Fridays and Saturdays, no opposite sex in your room after 2:00a.m.
We had nightguards where you had to sign your company in and out. Nightguards were on duty from 9 - 4a.m. I worked that job 2 weeks and quit.
3. Did you live in SS or Co-ed dorms? Why (if you had a choice)?
Freshman year -- Woodlawn Hall which was connected to South and Hanley. Woodlawn was substance free.
Sophomore and Junior year -- Ferncliff.
4. Did you sneak folks in and out?
Of course I did. 
5. Did you have roommates? Do you still keep in touch with them?
Freshman year -- Rachael, she pledged Delta Zeta. (NO)
Sophomore -- Jelynn (YES, this is my road dawg)
Junior -- lived alone
Senior #1 -- apt with Stephanie (every now and again) and Shondraye (no)